It’s designed to eventually replace the light strike/fighters for the US and UK, including the F16,F/A18, and Harrier. The model you would be interested in is the F-35B, which will be capable of STOVL (short take off / vertical landing).

However, if you are taking a leap in reality for a book, etc, there’s no reason you couldn’t use a fabricated aircraft, or a real aircraft with ‘modifications’. There’s also no reason to stick with 88 miles per hour.

Come to think of it, didn’t Doc modify the Delorian in ‘Back to the Future’ to fly?

Maybe you can use the poetic license to tweak the engine so that they accelerate beyond 88 mph sideways or backwards too. (I guess the current limitation is 40 knots to the sides and 60 rearwards, not very sure, and 60 knots is not far off from 88 mph)

For landing almost anywhere, I’d think more along the lines of an amphib, such as the Beaver you mentioned, but I like the Goose, Albatross or Widgeon better. The DC-3 could work, but it’s tough to get it to 88mph with floats.

You can pick up a Goon for about $100G, and last I looked, Gooses, (Geese?) were running half a mil. I don’t know if the DEA will even let people by an Albatross anymore.

War time reserve was a combat based guarantee from the engine manufacturers. Say your max manifold pressure was 40 in. Hg, they swore the engine would hold together and get you home if you ran 45 in.HG and 10% over redline RPM. You could only do it for 15 minutes, and then you needed to start plotting a place to land.

If you were lucky enough to land at a home base, and you’d used the war time reserve, the engine was removed and thrown in a pile and replaced with a new engine.

You’ll use the war time reserve when you pop up in a time where the airport you’d planned on landing at isn’t there and you firewall the throttle(s) to avoid crashing into a barn, a forest, a forest, cow, kid, or town that you hadn’t thought was there.

In normal service, the P-51H Mustang was rated at 1,380 hp, but WEP would deliver up to 2,218 hp.[3] The Vought F4U Corsair, not originally equipped for WEP, later boasted a power increase of up to 410 hp (17%) when WEP was engaged.[2]

Several methods were used to boost engine power by manufacturers, including water injection and methanol-water injection. Some earlier engines simply allowed the throttle to open wider than normal, allowing more air to flow through the intake. All WEP methods result in greater-than-usual stresses on the engine, and correspond to a reduced engine lifetime. For some airplanes, such as the P-51, use of WEP required the plane to be grounded after landing and the engine torn down and inspected for damage before returning to the air.

The German MW50 system required additional piping, as well as a storage tank, increasing the aircraft’s overall weight.[4] Like other boost techniques, MW50 was restricted by capacity and engine temperatures and could only be used for a limited time. The GM 1 nitrous oxide injection system, also used by the Luftwaffe, provided extreme power benefits of 25 to 30 percent but required cooling on the ground and added significant weight.[4]

I don’t see how a STOL (short take-off or landing) aircraft, or even a DHC Beaver could even be remotely related to time travel.
I think the best ever time travelling consol was conceived by HG Wells (the authour of 1984). He wrote some amazing novels surrounding time travel & other great things. Considering the time he came from this man was a great visionary, & science fiction author.
And where in the world did you ever get the idea that time travel could be achieved at 88mph?
If that were the case, I would be a regular time traveler on my commute to work every day.

* 88 mph ? time travel ? 88 mph looks like a good speed
for good mileage (recommended by automakers experts)
hehehe
what’s surprising is that 88 mph is the speed of M.J.Fox’s
DeLorean car to begin “time travel” in the movie “back to
the future”